name: pr-title

on:
  pull_request:
    types: [opened, edited, synchronize, reopened]
    branches: [main]

permissions:
  pull-requests: read

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - name: Validate PR title follows Conventional Commits
        uses: amannn/action-semantic-pull-request@v5
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          # Allowed conventional commit types (must match cliff.toml commit_parsers)
          types: |
            feat
            fix
            perf
            refactor
            docs
            chore
            ci
            test
            release
          # Require lowercase subject
          subjectPattern: ^[a-z].*$
          subjectPatternError: |
            The PR title subject must start with a lowercase letter.
            Example: "feat: add release notes dialog"
          # Do not require a scope
          requireScope: false